The question of feasibility and the way of ethical analysis of technological artifacts at the design stage, namely before they can be actualized and made available to the users, is one of the challenges of technology ethics. This is more the case, especially with emerging technologies, which are quite innovative and have major vague and uncertain consequences. In addition, the question of the feasibility and the way of incorporating specific (non-universal) ethical values into the design of technologies while maintaining their functionality is also a contentious issue. In this article, to answer the first question, a proper methodology for the ethical analysis of emerging technologies will be presented, and then to answer the second question, focusing on human improvement technologies (HIT), it will be shown that not only does the ethical analysis of a particular group of emerging technologies, called emerging trans-human technologies, indicate their conflicts with human ethical values, but also the possibility of redesigning them to incorporate these values ceases to exist.